Honeywell UDC2800 - Page 365

Parameter
Description
Register
Address
Data
Type
Access
Data Range or Enumerated
Selection
Hex Decimal
14 = To Begin (Reset SP
Program)
15 = Inhibit Integral
16 = Manual Failsafe Output
17 = Disable Keyboard
18 = To Preset Auto Output
19 = To Start Timer
20 = To Auto/Man Station
21 = Initiate Limit Cycle
Tuning (To Tune)
22 = Setpoint Initialization
(SP=PV)
23 = Output Track Input 2
24 = To Remote SP
25 = External Reset
Feedback
26 = To Purge
27 = To Low Fire
28 = Manual Latching
29 = PV Hold
Digital Input 1
Combinations
8BA 2234 INT
R/W
0 = Disable
1 = + PID Sets 2
2 = + To Direct Action
3 = + To Local SP 2
4 = + Disable Tune
5 = + Local SP 1
365
Chapter 11 - Modbus RTU Function Codes 20&21